Electrical signaling and switching apparatus.



PATENTED MAY 12, 1908.

4 R: H. MANSON. ELECTRICAL SIGNALING AND SWITCHING APPARATUS.

APPLICATION FILED JUNE 14,1905

2 samws-smm 1,

4 2 SHEETS-@HHET 2.

PATENTED MAY 12, 1908. E. H. MANSON.

ELECTRICAL SIGNALING AND SWITCHING APPARATUS. APPLICATION FITITZT) JUNE .1. 1905.

Elwyn/2 0]? Wham n, "i Y m! it lulOV/Il it me combination l have l ]ittf-'l.dCHi2 tii iviit ho i i) u i 3 til ili ltllll we ol sli llozl lzthor, hut my hut the most primihizvia ilvsi 'iiml :t i

to HILOil thuso i-omlitiohs, mm! in point ol mhvehioooo (Bit h'onl pinto upon woi imillllli l, :1 tubular iron-(lad clout mil plots, 2t (ll-o shutter ii'm cont:

tau-vii tho "3-, oil

s it I hop soutwi.

vim

i siwmiing orti iilzii'ly otl onmini'uotor tit plo 'etl to mlvoi'itzigo elsewhere than in tho 10:0 ilvsci'iheil ly usolul in nminuctioh. with ilioiio exchange switfilil itioii has for its ohjoct the prolililOll soll'--i' &stoi'in;g (imp hut all um ls.

lion. Units ol" whoi'o all rohhiholioh :lusimhlo in any ELUUIL in invoii ion ooiiign'isos it tlm ports are magnet and long 'ggwlesgn'inggs ii-oi com ho chic-tro- Letters ELECTRIC (19M showing the frame and springs of 155g. 3 :1 P531 and elevation; 51g.

the jitflli; t is o SltlO View 01' tho electronmgnot with portions of tho otl 1,1 parts in section, shW- m: my inipi'ov t i Otl :tii'afngement of the ni it irm contacts; and l i 5 is a front View of the complete in LSSPJHlILlOAl as it atone-airs when mounted iii n, suitolihom'it in the drawings ii is the l'i'ontsgz-lato, prei m'ztlily of metal, whiz-h will he (ll scribed its it is shown, tl at is in :1, single unit section, although it may iiilmltl ti iii:

sullicicnt iohgth loi' tho eiurrominoihitioh :iml support ol tun ()l' more units, Upon the iooi' loco of this plate provulo t h ot o insulating motvi'iitl. (I,

L ml svouiml iigiti 1st this in any suitstl lomm1- i 02*, its by moons of svrows extending tlu'oiiglt t front-plate, is the tuhuhwix'on shvll, B, 0 (ruling horizontal y io tho I'Ottl', oml housing; within it tho uhomztghvt whose core 1: is swui'ml ttli tho lronli (Jltl to tho (Will of the sholl so 2th to town it good hmghctin (fllt'llitl. At the !(21-l.'1!(l ol' tho sholi lpi'ovial X it szuhlle ho xl or "'i o I)", sirrwml o! riveted to tho sholl and h 5 ti, i'iiisoll muhllo portion l) and cars i)" when \Jlllt'll the immature ooil its :l

tvnt i'otl are pivoted 'lhc armature inalii'otml by tho lottm' i), in Figs. 1 mill 3, and is in gvovritl shopo lilw LL shioltl, with upwardly projecting lugs 4'1", and sitlo portions out it. my to mmnmnotlnlv the magnet tPiliiiiiiilS. This lugs l/ tit against the inner flu-us ol' the eiirs If" and hotween thoso lugs iios the pivot l loclq I) through which multhz'oiigh the lugs lllitl oars passi s the pivot-pin If". The lower o tm' (lgh ol' the pivot-lilool i chaiul m'ctl oil to l'oriii ll noriliol homing intro for tho (Hill of s n 1'), socuretl by screws If upon tho lOWli' poi-t ol' tho outm' iztco of tho arnmtui'v. Secured solidly to tho pivot-block l" and lying :zlo, top ol thosheli B, is tho oiillki'illi'il' iluttiiti'oil 1/ whose front and passes secure through an opening, a, in the L per part of the plate A, and is then bent down at an angle with its axis,.terminating in a hook or detent l). U on the upper part of the face of the front-p ate A is secured in any suitable manner, as by screws passing into the plate, the shutter-plate d formed with two bent ears (1 to receive the shutter intle (P, and insulated from the plate A by t e interposed rubber or fiber 07; Pivoted upon the pintle d and normally held'u p in front of the late (1 by the hook end 5 of the rod 6 is the ropshutter D, having the opening d through its upper portion for the passage of the detent, an upon its lower ed e having fourtongues or projections d 1, and d (see Fig. 5). The tongues d and d are bent over to take around and form bearings for the pintle (2 The tongue (1 is for restoring urposes, and the'tongue d controls the nigiit alarm con-- tacts.

Below the shutter D the front-plate A is out out to form an opening a for the passage of the night-alarm and restoring s rings, to which further reference will be ma e, and in order to cover'this opening as well as to protect the projecting ends of the springs, I provide the box or casing E, referably formed up out of sheet metal, with openings, e and e, and ears e, whereby it is secured u on the face-plate by rivets or otherwise. See

Fig. 5.

Below the housing E lies the jack J, the working parts of which are supported in a frame composed of two longitudinal side strips J, J joined. at their front ends by a yoke piece, j, and at their rear ends by .a horizontal yoke-plate .upon which and between the side plates are mounted the various 0 erating springs. The jack frame is d to the front-plate A by the hushed thimble y' the insulating plate a extending down between the frame and the front and being pierced for the passage of the t limble shank, while the latter is surrounded by the insulating bushing whereby the jack frame and connecting parts are entirely inframe.

sulated from the front-plate. This is desirable for several reasons, one being the prevention of possible crosses or short-circuits between or on the different lines whose units are carried on the same plate, or whose lates are secured on the same metalswitch oard This is particularlynecessary, also, because one of the night-alarm contacts is grounded on the frame, the other being in:- sulated in each case.

The j aek-springs are four in number, comprising the two contact-springs if and j, the anvil spring j" upon whic l the spring j nor mally rests, and the restori 0 spring j, whose forwardend 7 extends out' through the opening a in the front-plate, into the box or housing E and is there turned up as shown in Figs. 1 and 5, lying below the end of the tongue (1* v strong contact while idle.

late

ion the drop shutter. Intermediate of its ends the spring 9' rests upon an insulating spring 1'", with which the tip spring 7' makes The adjustment of the parts is such that they will lie in the latter is applied to the front-plate at all.-

When the complete 'a paratus is finally assembled all together, t e steady-pins 7' .lie in corresponding openings in'the rear face of the insulated plate a the jack structure be ing thus prevented from turning, which it might do if secured by the thimble i only, since this latter-is tapped into the yoke j and unless riveted might in practice slacken up enough to permit the jack to have some slight play, thereby spoiling the adjustment of the springs and particularly the restoring spring.

The jack springs are secured at their rear ends by being piled up with interposed slips of insulating material upon the cross-yoke and held in such position by the clamping.

plate 9" and the screws 9', the latter being hushed if required and tapped directly into the yoke-plate. In order to permit of inspection and adjustment after assembling the jack-s rings, I cut out the side plates J and J, to 'orm openings, O, as shown in Fig. 1.

The electromagnet 0, either in its entirety or merely as regards the spool and winding, is made inln'ovable from the shell B, without position shown in Fig. 1 when the apparatus tools.- According to in preferredconstruction the core cis rivete at itsend to the end of the shell, and the spool containing the windings can he slid in and out by merely throwing up the armature around the ivot b into the position shown in Fig.1. 1 the armature thrown up the coil may he slid out, and a new coil slid in, such substitution being quite fre uelntly re uired in cases ofburn-outs-and t 1e like. 11 order to secure the spool removably in place I provide the outer head with a projecting P1114}, which when'the coil is inserted passes into a slot 1) in the lower edge of the shell and is engaged by a latch spring B secured upon the under side of the shell.

is inserted the spring snaps over the pin and holds it in place.

r In order to make electrical connection lieith In order to withdraw the coil this spring is depressed, and when a coil.

tween the coil and the jack terminals, I provide the solid pivoted. hasps H, H secured at their lower ends to the proper terminals on the jack frame, and at their upper ends enthe terminals 0 c" secured to the head of 1 spool. The hasp H is pivoted on a s re-w it tapped into the sleeve j" formed up n the end of the anvil spring j; while the hasp ll pivoted on the spool 7L tapped into the sleeve 7' formed up on the rear end of the contact-spring The contact spring f also has :1 sleeve 3' which takes a screw /2'-, hut there is no lmsp connection, the only purpose in this case being to provide a solid terminal for attachment oi the circuit wires. ,1

.is puroose l secure by means of the For t screw its a tailed Washer 72 having its outer. end perforated for the attachment by solder oi the line-Wire.

The other side of the line is attached to a similar perforated tail formed on the hasp it. It will thus be observed that when the hasps H and H are turned up to engage the two terminals 0", c and the screws 0 are tightened upon them, that the magnet winding'is bridged across the two springs, j, j", and as the latter is normally in ct with the spring and as the springs it are the line-terminals, it follows that magnet is normally bridged across the lin an d is cut out when plug is inserted.

it nains to describe my improved arrangement of night-alarn'i contacts, which is hest shown in Figs. 4 and The spring N is secured by screws or otherwise, to one side of the tuhular shell E, and has its forward end tending through the opening a in the front-piz ;e, and into the hex or housing. This end turned up as shown at n, Figv 4, and lies in the opening 6, to be engaged when. the drop is down by the tongue (i thereof. Underlying the end of the spring, n, is the anvil contact, n, which as I have already stated grounded upon the "frame A. Gilly one circuit connection therefore is required to be made when a new unitis attached to the switchboard.

The operation oi my improved ap )aratus is as follows: The parts all being in the posi tion shown in Fig. 1, when signaling current comes over the subscribers line it passes in hv we; of the terminal 7L and hasp H,

through the coil C, back through hasp H to the spri g; 7'", thence to the spring j, and back to e by travel the terminal If. The

armature It being attracted, the rod 5 is lifted, the hook e dctached from the shutter, and the latter falls. The tongue (Z then enthe nrglltalarm spring to close that circuit, and the tongue (Z"con1es down upon and overlies the end of the restoring spring j, shown in dot-ted lines in Fig. '1. It should he stat-ed that this tongue is not essential, the idea being that the restoring LY' should engage and lift the drop shutl v'l'ien the plug is inserted'in resp the call it spreads apart the springs y am the former lilting oil' the contact j and thereby cutting out the dro; while the other lifts the stud j" and the restoring spring; 7 the outer end of which passes up through the slot 0 in the box and iii the shutter until it again engages and is hook in putting a unit into switchhm trd front plate is secured upon the frame, and. the linc-wires are soldered to the terminals 71,, h". h'othing mo: renniiret.

in repliu-ine a burned out coil, the a are loosened andthe hasps thrown down into the po: Y dotted lines in Fig. 5%. This exposes of the armature I) and removes all obstructions, so that by simply inserting: the lin below the projecting lower end oi the spring 7)", the entire armature can be swung u '2 into thcposition slmwn in dotteu lines in l, being retained there by the pressure of the spring if on the top oithe pivot hi Then by (leplPSSillgf the end of the spri so as to clear the pin (1, the spool in l Withdrawn and a new one suhstituted. l; armature is then turned down, the harps thrown up into no ition end the screws c ightoned up, wl the apparatus is egaii'i in up hen.

ll am aware that many changes may he made in matters of shape in non-essential details oi construction without departing from the spirit m invention, and l i it understood that l include all such Wit in the scope and purview thereof,

Having thus described my lll'VWliliDtl, what i claim and desire to secure by Letters Pat ent is:

and spring rig the l. A combined annunciator jack comprising a front plate supporti annue itor magnet and, mil dovn together witli the eel; struct'w an opening in said plate, between the jack and the device, a box orhousing covering: said 9 eiting on the front of the late and slotted in the side toward, the signal device, together with a restoring member l g at one end in it as to be J'FIUVOi.

relation to the y 8 f mm, and have otlmr 0 1 f tending tl'n'W h the c-pr plate into the no or housi forced thr uyh. the slot to the l tion to es signal device vxlwn the ack :4 are moved by drop shutter, an open I in; in the front piste between the shutter :ind the acli', a ho or housing: covering: said opening; and secured on the front the plate, said housing ha' slotted in its upper hr th the drop ained by the the - shutter, together with a resilient menibersev upon the fixe cured in thejack frame anolihavin one end extending in spring insulated from but adapted to o cratesaid member to restore the'drop s utter when a plug is inserted. v

3, An annunciator com rising a face plate and a drop shutter pivote thereon, an 0 ening in said plate below the shutter, a 'Xed contact housed in said opening, a box orc'as-e ing secured tothe front plate covering the opening and slotted in its upper face, a InOV- a le spring extending into the box and havingapart lying Within the slot thereof, to ge'ther with a projection on the dro shutter adapted to engage said spring an close it contact when the drop is down. 4. A combined annunciator and spring jack comprising a front plate, a drop shutterpivoted thereonf an electromagnet controlosition to be force through said slot in t e box or casing, and a jack asmeel' ling the same, a spring jack 'as sociatedithere- I with, a box orhousing extending along one;

side of the dro shutter andfprovided-with slots on that si e, a fixed night alarm contact carried by the front plate behind said box or,

-housin and a pair of springs exten throng (the front plate and through saio slots into position to engage and be en aged by the drop shutter, one of said springs em forced through its slot when a plugis lnserte in the spring 'jack, so as to restore the drop shutter to its normal position and the other spring lying in proximity :to the fixed night alarm contact and adaptedto be forced into contact therewith when the drop shutter falls.

, g In testimony whereof I affix my signature in presence of two witnesses.

- I RAY H. MANSON.

Witnesses: v

SIDNEY A.-"BEYLAND,; L. E. HAMILTONQ 

